وفّر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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طريقة تشفير تستخدم لجعل الاتصال بين طرفين آمناً وسرياً ومنع أي طرف ثالث من الوصول إلى البيانات أثناء انتقالها من جهاز إلى آخر. يتم في تشفير من طرف إلى طرف تشفير البيانات في طرف المرسل بحيث يكون المستقبل هو الوحيد القادر على فك تشفيرها. ولا يمكن لأي طرف ثالث بينهما مثل مزود خدمة الإنترنت أو مزود خدمة التطبيق أو مخترق حتى فك تشفير تلك البيانات وقراءتها أو التلاعب بمحتواها. ويستخدم هذا النوع من التشفير اليوم في العديد من المجالات مثل تطبيقات التراسل الفوري.
يعتمد تشفير من طرف إلى طرف على نوع من خوارزميات التشفير التي تعرف باسم تشفير المفتاح العام أو التشفير غير المتناظر. يتم في هذا النوع توليد زوج من المفاتيح (مفتاح عام ومفتاح خاص) لكل مستخدم، يحتفظ المستخدم بمفتاحه الخاص بشكل سري ويقوم بتوزيع مفتاحه العام على كافة الأطراف في الشبكة باستخدام خوارزميات خاصة بتبادل المفاتيح لا يمكن كسرها بالاعتماد على القدرات الحاسوبية المتاحة حالياً، أو يتم توزيع ذلك المفتاح من قبل طرف موثوق عبر قناة آمنة. ثم تتم العملية كما يلي:
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